Columnist: Odds are against a Seahawks dynasty

Not since the 2004 Patriots has an NFL team repeated its Super Bowl championship. It's happened only three other times in the last 25 years, a rarity that speaks to how increasingly difficult it has become to sustain that level of success in the salary-cap era of the NFL.

That was among the evidence cited by Jeffri Chadiha in his latest column on ESPN.com in which he writes that talk of a Seahawks dynasty is premature. A more appropriate conversation, Chadiha believes, is how hard it could be for the Seahawks to repeat. His stated reasons include the players they've already lost, a roster that is about to become significantly more expensive, the complacency that tends to creep in following success, the increasingly strong competition they'll face in the NFC and the difficulty of continuing to find gems in the later rounds of the draft.